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PCA9306DCTT

更新时间： 2024-11-25 22:44:31
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
13页 201K
描述
DUAL BIDIRECTIONAL I2C BUS AND SMBus VOLTAGE-LEVEL TRANSLATOR

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PCA9306DCTT 数据手册

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PCA9306  
DUAL BIDIRECTIONAL I2C BUS AND SMBus VOLTAGE-LEVEL TRANSLATOR  
www.ti.com  
SCPS113–OCTOBER 2004–REVISED APRIL 2005  
FEATURES  
•
•
•
•
Lock-Up-Free Operation for Isolation When  
EN = Low  
•
2-Bit Bidirectional Translator for SDA and SCL  
Lines in Mixed-Mode I2C Applications  
Flow-Through Pinout for Ease of Printed  
Circuit Board Trace Routing  
•
•
I2C and SMBus Compatible  
Latch-Up Performance Exceeds 100 mA Per  
JESD 78, Class II  
Less Than 1.5-ns Maximum Propagation Delay  
to Accommodate Standard-Mode and  
Fast-Mode I2C Devices and Multiple Masters  
ESD Protection Exceeds JESD 22  
– 2000-V Human-Body Model (A114-A)  
– 200-V Machine Model (A115-A)  
•
Allows Voltage-Level Translator Between  
– 1.2-V VREF1 and 2.5-V, 3.3-V, or 5-V VREF2  
– 1.8-V VREF1 and 3.3-V or 5-V VREF2  
– 2.5-V VREF1 and 5-V VREF2  
– 1000-V Charged-Device Model (C101)  
DCT OR DCU PACKAGE  
(TOP VIEW)  
– 3.3-V VREF1 and 5-V VREF2  
•
•
Provides Bidirectional Voltage Translation  
With No Direction Pin  
GND  
1
2
3
4
8
7
6
5
EN  
V
V
REF1  
REF2  
Low 3.5-Ω ON-State Connection Between  
Input and Output Ports Provides Less Signal  
Distortion  
SCL1  
SDA1  
SCL2  
SDA2  
•
•
•
Open-Drain I2C I/O Ports (SCL1, SDA1, SCL2,  
and SDA2)  
5-V Tolerant I2C I/O Ports to Support  
Mixed-Mode Signal Operation  
High-Impedance SCL1, SDA1, SCL2, and  
SDA2 Pins for EN = Low  
PIN  
1
SYMBOL  
GND  
FUNCTION  
Ground, 0 V  
Low-voltage-side reference supply voltage for SCL1 and SDA1  
2
VREF1  
SCL1  
SDA1  
SDA2  
SCL2  
VREF2  
3
Serial clock, low-voltage side. Connect to VREF1 through a pullup resistor.  
Serial data, low-voltage side. Connect to VREF1 through a pullup resistor.  
Serial data, high-voltage side. Connect to VREF2 through a pullup resistor.  
Serial clock, high-voltage side. Connect to VREF2 through a pullup resistor.  
High-voltage-side reference supply voltage for SCL2 and SDA2  
4
5
6
7
Switch enable input. Connected to VREF2 and pulled up through a high  
resistor.  
8
EN  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2004–2005, Texas Instruments Incorporated  
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PCA9306DCTT 替代型号

型号 品牌 替代类型 描述 数据表
PCA9306DCTRE4 TI

完全替代

 DUAL BIDIRECTIONAL I2C BUS AND SMBus VOLTAGE-LEVEL TRANSLATOR
PCA9306DCUR TI

类似代替

 DUAL BIDIRECTIONAL I2C BUS AND SMBus VOLTAGE-LEVEL TRANSLATOR
PCA9306DCTR TI

类似代替

 DUAL BIDIRECTIONAL I2C BUS AND SMBus VOLTAGE-LEVEL TRANSLATOR

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